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Priority claimed from SE8007143Aexternal-prioritypatent/SE418727B/sv
Application filed by Balsta SveziafiledCriticalBalsta Svezia
Priority to IT19370/82ApriorityCriticalpatent/IT1149517B/it
Publication of IT8219370A0publicationCriticalpatent/IT8219370A0/it
Application grantedgrantedCritical
Publication of IT1149517BpublicationCriticalpatent/IT1149517B/it